Results 1 to 10 of about 823 (107)

Time-Slicing Path-integral in Curved Space [PDF]

open access: yesQuantum, 2022
Path integrals constitute powerful representations for both quantum and stochastic dynamics. Yet despite many decades of intensive studies, there is no consensus on how to formulate them for dynamics in curved space, or how to make them covariant with ...
Mingnan Ding, Xiangjun Xing
doaj   +1 more source

Stochastic Inflation at NNLO

open access: yesJournal of High Energy Physics, 2021
Stochastic Inflation is an important framework for understanding the physics of de Sitter space and the phenomenology of inflation. In the leading approximation, this approach results in a Fokker-Planck equation that calculates the probability ...
Timothy Cohen   +3 more
doaj   +1 more source

Holographic open quantum systems: toy models and analytic properties of thermal correlators

open access: yesJournal of High Energy Physics, 2023
We present a unified picture of open quantum systems, the theory of a system probing a noisy thermal environment, distilling lessons learnt from previous holographic analyses.
R. Loganayagam   +2 more
doaj   +1 more source

Quantum stochastic integrals as belated integrals [PDF]

open access: yesGlasgow Mathematical Journal, 1992
Quantum stochastic integrals have been constructed in various contexts [2, 3, 4, 5, 9] by adapting the construction of the classical L2-Itô-integral with respect to Brownian motion. Thus, the integral is first defined for simple integrands as a finite sum, then one establishes certain isometry relations or suitable bounds to allow the extension, by ...
Barnett, Chris   +2 more
openaire   +1 more source

Unraveling looping efficiency of stochastic Cosserat polymers

open access: yesPhysical Review Research, 2022
Understanding looping probabilities, including the particular case of ring closure or cyclization, of fluctuating polymers (e.g., DNA) is important in many applications in molecular biology and chemistry.
Giulio Corazza, Raushan Singh
doaj   +1 more source

Stochastic Electrodynamics: Lessons from Regularizing the Harmonic Oscillator

open access: yesAtoms, 2019
In this paper, the harmonic oscillator problem in Stochastic Electrodynamics is revisited. Using the exact shape of the Lorentz damping term prevents run-away effects.
Theodorus Maria Nieuwenhuizen
doaj   +1 more source

Quantum Stochastic Integrals as Operators [PDF]

open access: yesInternational Journal of Theoretical Physics, 2010
We construct quantum stochastic integrals for the integrator being a martingale in a von Neumann algebra, and the integrand -- a suitable process with values in the same algebra, as densely defined operators affiliated with the algebra. In the case of a finite algebra we allow the integrator to be an $L^2$--martingale in which case the integrals are $L^
openaire   +2 more sources

Quantum Coherent States and Path Integral Method to Stochastically Determine the Anisotropic Volume Expansion in Lithiated Silicon Nanowires

open access: yesMathematical and Computational Applications, 2017
This computational research study will analyze the multi-physics of lithium ion insertion into a silicon nanowire in an attempt to explain the electrochemical kinetics at the nanoscale and quantum level.
Donald C. Boone
doaj   +1 more source

MALLIAVIN CALCULUS AND SKOROHOD INTEGRATION FOR QUANTUM STOCHASTIC PROCESSES [PDF]

open access: yesInfinite Dimensional Analysis, Quantum Probability and Related Topics, 2001
A derivation operator and a divergence operator are defined on the algebra of bounded operators on the symmetric Fock space over the complexification of a real Hilbert space [Formula: see text] and it is shown that they satisfy similar properties as the derivation and divergence operator on the Wiener space over [Formula: see text].
Franz, Uwe   +2 more
openaire   +2 more sources

Stochastic Path-Integral Analysis of the Continuously Monitored Quantum Harmonic Oscillator [PDF]

open access: yesPRX Quantum, 2022
15 pages, 7 ...
Tathagata Karmakar   +2 more
openaire   +3 more sources

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